FVXX20 KWBC 281907 VOLCANIC ASH ADVISORY ISSUED: 2001JUN28/1907Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/84 . INFORMATION SOURCE: THE GUAYAQUIL METEOROLOGICAL WATCH OFFICE, GEOPHYSICAL INSTITUTE, GOES 8 VISIBLE,INFRARED, AND MULTISPECTRAL IMAGERY. FORECAST WINDS FROM THE AVIATION MODEL. . ERUPTION DETAILS: ERUPTION OCCURRED AT 28/1824Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE INDICATED THAT VOLCANIC ASH WAS LIKELY TO FL230 OVER THE VOLCANO BASED ON SEISMIC ACTIVITY AT 1824Z. CLOUDS COVERED THE SUMMIT AND IMMEDIATE SURROUNDINGS THROUGH 1845Z PRECLUDING THE DETECTION OF ASH IN SATELLITE IMAGERY. . TRAJECTORY: ANY ASH TO FL230 WOULD MOVE TOWARDS THE WEST SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 29/0100Z. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN